{
namespace Text
{
-Size Controller::Relayouter::CalculateLayoutSizeOnRequiredControllerSize(Controller& controller, const Size& requestedControllerSize, const OperationsMask& requestedOperationsMask, bool restoreLinesAndGlyphPositions)
+Size Controller::Relayouter::CalculateLayoutSizeOnRequiredControllerSize(Controller& controller, const Size& requestedControllerSize, const OperationsMask& requestedOperationsMask)
{
DALI_LOG_INFO(gLogFilter, Debug::Verbose, "-->CalculateLayoutSizeOnRequiredControllerSize\n");
Size calculatedLayoutSize;
ModelPtr& model = impl.mModel;
VisualModelPtr& visualModel = model->mVisualModel;
- // Store the pending operations mask so that it can be restored later on with no modifications made on it
- // while getting the natural size were reflected on the original mask.
- OperationsMask operationsPendingBackUp = static_cast<OperationsMask>(impl.mOperationsPending);
-
- // This is a hotfix for side effect on Scrolling, LineWrap and Invalid position of cursor in TextEditor after calling CalculateLayoutSizeOnRequiredControllerSize.
- // The number of lines and glyph-positions inside visualModel have been changed by calling DoRelayout with requestedControllerSize.
- // Store the mLines and mGlyphPositions from visualModel so that they can be restored later on with no modifications made on them.
- //TODO: Refactor "DoRelayout" and extract common code of size calculation without modifying attributes of mVisualModel, and then blah, blah, etc.
- Vector<LineRun> linesBackup = visualModel->mLines;
- Vector<Vector2> glyphPositionsBackup = visualModel->mGlyphPositions;
-
// Operations that can be done only once until the text changes.
const OperationsMask onlyOnceOperations = static_cast<OperationsMask>(CONVERT_TO_UTF32 |
GET_SCRIPTS |
textUpdateInfo.mParagraphCharacterIndex = 0u;
textUpdateInfo.mRequestedNumberOfCharacters = model->mLogicalModel->mText.Count();
- // Make sure the model is up-to-date before layouting
- impl.UpdateModel(onlyOnceOperations);
+ // This is to keep Index to the first character to be updated.
+ // Then restore it after calling Clear method.
+ auto updateInfoCharIndexBackup = textUpdateInfo.mCharacterIndex;
// Get a reference to the pending operations member
OperationsMask& operationsPending = impl.mOperationsPending;
// Layout the text for the new width.
- operationsPending = static_cast<OperationsMask>(operationsPending | requestedOperationsMask);
+ // Apply the pending operations, requested operations and the only once operations.
+ // Then remove onlyOnceOperations
+ operationsPending = static_cast<OperationsMask>(operationsPending | requestedOperationsMask | onlyOnceOperations);
+
+ // Make sure the model is up-to-date before layouting
+ impl.UpdateModel(static_cast<OperationsMask>(operationsPending & ~UPDATE_LAYOUT_SIZE));
// Store the actual control's size to restore later.
const Size actualControlSize = visualModel->mControlSize;
DoRelayout(impl,
requestedControllerSize,
- static_cast<OperationsMask>(onlyOnceOperations |
- requestedOperationsMask),
+ static_cast<OperationsMask>(operationsPending & ~UPDATE_LAYOUT_SIZE),
calculatedLayoutSize);
// Clear the update info. This info will be set the next time the text is updated.
textUpdateInfo.Clear();
- textUpdateInfo.mClearAll = true;
+
+ //TODO: Refactor "DoRelayout" and extract common code of size calculation without modifying attributes of mVisualModel,
+ //TODO: then calculate GlyphPositions. Lines, Size, Layout for Natural-Size
+ //TODO: and utilize the values in OperationsPending and TextUpdateInfo without changing the original one.
+ //TODO: Also it will improve performance because there is no need todo FullRelyout on the next need for layouting.
+
+ // FullRelayoutNeeded should be true because DoRelayout is MAX_FLOAT, MAX_FLOAT.
+ // By this no need to take backup and restore it.
+ textUpdateInfo.mFullRelayoutNeeded = true;
+
+ // Restore mCharacterIndex. Because "Clear" set it to the maximum integer.
+ // The "CalculateTextUpdateIndices" does not work proprely because the mCharacterIndex will be greater than mPreviousNumberOfCharacters.
+ // Which apply an assumption to update only the last paragraph. That could cause many of out of index crashes.
+ textUpdateInfo.mCharacterIndex = updateInfoCharIndexBackup;
+
+ // Do not do again the only once operations.
+ operationsPending = static_cast<OperationsMask>(operationsPending & ~onlyOnceOperations);
+
+ // Do the size related operations again.
+
+ const OperationsMask sizeOperations = static_cast<OperationsMask>(LAYOUT |
+ ALIGN |
+ REORDER);
+
+ operationsPending = static_cast<OperationsMask>(operationsPending | sizeOperations);
// Restore the actual control's size.
visualModel->mControlSize = actualControlSize;
- // Restore the previously backed-up pending operations' mask without the only once operations.
- impl.mOperationsPending = static_cast<OperationsMask>(operationsPendingBackUp & ~onlyOnceOperations);
-
- // Restore the previously backed-up mLines and mGlyphPositions from visualModel.
- if(restoreLinesAndGlyphPositions)
- {
- visualModel->mLines = linesBackup;
- visualModel->mGlyphPositions = glyphPositionsBackup;
- }
return calculatedLayoutSize;
}
OperationsMask requestedOperationsMask = static_cast<OperationsMask>(LAYOUT | REORDER);
Size sizeMaxWidthAndMaxHeight = Size(MAX_FLOAT, MAX_FLOAT);
- naturalSize = CalculateLayoutSizeOnRequiredControllerSize(controller, sizeMaxWidthAndMaxHeight, requestedOperationsMask, true);
+ naturalSize = CalculateLayoutSizeOnRequiredControllerSize(controller, sizeMaxWidthAndMaxHeight, requestedOperationsMask);
// Stores the natural size to avoid recalculate it again
// unless the text/style changes.
OperationsMask requestedOperationsMask = static_cast<OperationsMask>(LAYOUT);
Size sizeRequestedWidthAndMaxHeight = Size(width, MAX_FLOAT);
- // Skip restore, because if GetHeightForWidth called before rendering and layouting then visualModel->mControlSize will be zero which will make LineCount zero.
- // The implementation of Get LineCount property depends on calling GetHeightForWidth then read mLines.Count() from visualModel direct.
- // If the LineCount property is requested before rendering and layouting then the value will be zero, which is incorrect.
- // So we will not restore the previously backed-up mLines and mGlyphPositions from visualModel in such case.
- // Another case to skip restore is when the requested width equals the Control's width which means the caller need to update the old values.
- // For example, when the text is changed.
- bool restoreLinesAndGlyphPositions = (visualModel->mControlSize.width > 0 && visualModel->mControlSize.height > 0) && (visualModel->mControlSize.width != width);
-
- layoutSize = CalculateLayoutSizeOnRequiredControllerSize(controller, sizeRequestedWidthAndMaxHeight, requestedOperationsMask, restoreLinesAndGlyphPositions);
+ layoutSize = CalculateLayoutSizeOnRequiredControllerSize(controller, sizeRequestedWidthAndMaxHeight, requestedOperationsMask);
DALI_LOG_INFO(gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height);
}
projects / platform / core / uifw / dali-toolkit.git / blobdiff